Treadle for organs or the like.



un. 7||,|9o. Patented oct. I4, |902 J. wlEsER.

TREADLE FUBDRGANS 0R THE LIKE.

(Applitltinn mad NOV. 30,1900. Renewed Sept. 10, 1902.)

(in um.)

VUNITED STATS PATENT OFFICE.

.IOSEIII \VIESER, OF BROOKLYN, NEW YORK.

TREADLE FOR ORGANS OR THE LIKE.

LLBECIEICATON forming part of Letters Patent N o. 71 1,190, dated October lll, 1902. Application tiled November 30` 1900. Renewed September 10, 1902. Serial No. 122.859. tNo model.)

15e it known that I, JOSEPH VIESER, a citizen of the United States,residin 1 at Brooklyn, county of Kings, State of New York, have invented certain new and useful Improvements in 'lreadles for Organs or the Like; and I do hereby declare the following to be a full, clear, and exact description of the invention, Such as will enable others skilled inthe art. to which it appertains to make and use the same.

My invention relates to certain improvements in treadles, and more especially to swinging treadles for actuating the bellows of oaf-mns or any automatic musicalinstrument.

y llle object of my invention is to provide a trleadle that is simple in construction, ellicient in operation, and effective in transferring.; 'the `full power` of the feet and legs tothe movable parts of the bellows.

The preferred form of my invention is illustrated in the accompanying,r drawings, in whicll- Figure l is a vertical section through the lower part of an organ, showing my improved ireadle in operative position. Fig. 2 is a perspective view of my treadlo enlarged to show the relativo arrangement ot' the various parts.

'llie casingl A is provided with main bellows l and exhausters C of any common or preferred typo.

Mounted on baseboard IC are two brackets or supports F, having angular flanges G, through which are passed suitable bolts or screws f/ to secure the brackets rigidly to the base. The upper ends of said brackets are provided with alining orifices to receive a rod or shaft lt, upon which is loosely hungr a yoke I, preferably ot' U shape. Projecting from the under side of this yoke is a iupr J,

provided with an elongated slot K. The side arms of the yoke each havo a perforated ea r or lug L, in which are journaled ends of a shaft N, rigidly attached to a footboard M. To the under side of said 'footboard is secured a lng or detent O,whieh engages the front face of lug J. A conneetingrod I is slidably mounted in a bracket S, secured to the rear edge of the base-board E. The forward end of said rod engages Slat K in the iupr .I of bracket I, while the real` end of said rod is provided with an eye R, by means of which it is connected by a spindle to the movable board I) of the ex-hauster C. A collar or stop Q, secured to the rod P, engages the lu; .Tand serves to transmit the movement of the yoke to the rod. A suitable springn 'i engage-sth@ movable board of the exhauster and maintains the exhanster closed when no pressure is ou the treadle.

By arrangitn!` the slide-rod P below the counection of the footboard with the yoke I said rod is lirmlysupported ou the base-board li., a large bellows is used, and a longer and more effective power-arm for the yoke is secured, resultingr in a more efficient transfer of the force exerted on the trcadle to the bellows without requiringr au abnormal swing of the lfoot and leg of thc operator.

'lhe operation of thedevicc illustrated is as follows: 1Viththepartsiuanormalcondition, with no pressure on the treadlepring 'l forces board D forward, carrying with it rod l, which rocks yoke I forward, thereby raising;- the foothoard forward and upward to an approximately horizontal position. In this position when the instrument is not in use tho footboard may be turned up against the front of the organ-ease. When the bellows is to be operated, the foot' is placed squarely on thev board M and the legmoved freely forwaru and downward. YThe I'ootooard and the swinging: yoke swing forward and A ownward, and rod l moves forward, sw nging,r the cx'nalister-board against the action of spring 'l and distcnding theexhauster. \V`nen the pressure of the foot is removed, the springr '.l returns the parts to normal position ready for another stroke. The forward and downward movement of the leg is natu ral and easy and entirely avoids the abnormal and tiring motion incident to the use of old forms of treadle, in which the foot alone, rocking upon the an klo, imparted a correspondingr movement to the footboard. In operating my treadle the full swinging thrust.- of the leg is transmitted to tho moving.;r parts, resulting in greater effective force at the bellows and little or no distress or fatigue to the operator` Having thus described my invention, what I claim isl. A treadle mechanism con'iprisinor a support, a yoke pivoted on said support, a footboard connectedv to said yoke below the piv-.p

etal point thereof, and a s1iderod engaging said lyoke below the treadle connection.

2. A treadle mechanism comprising a support, a yoke pivoted on said support, zt footboard hinged to said yoke below the pivotal point thereof, a detent on said footboard engaging said yoke, andl a. slide-rod coperating with the yoke. l l

3. A treadle mechanism comprisinga bese,

,brackets on said base, a yoke pivotec between said brackets, a footboard pivoted in ears on said yoke below the pivotal point thereof, a detent on said footboard engaging sad'yoke,

and a slide-rod cooperating with the yoke. 

